Missiles · Warning chain

Space debris

North Pacific · 2 notices · issued 2026-09-23 to 2026-09-29

What the reports establish

These messages are connected by recorded cancellation references. The links establish relationships between notices; they do not by themselves confirm a single object, a continuous track, or recovery.

Earliest dated evidence
NAVAREA XI 425/26
2026-09-23 12:00Z
Latest dated evidence
NAVAREA XI 435/26
2026-09-29 00:00Z
Recorded notice status
1 listed active
1 cancelled or archived

Collected from Japan Coast Guard JHOD NAVAREA XI. Issue dates order the reports, not the start and end of the underlying situation. A cancelled notice does not confirm recovery.

What the numbers show

Together the notices were in force for 5.7 days over an issue span of 5.5 days; overlapping notices are counted once.

Reading these warnings

Space debris
An area where parts of a spacecraft or rocket stage are expected to come down at sea, from a launch or a planned re-entry.
Area bound by
Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
Position (degrees and minutes)
How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.
Date-time group (DTG)
A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.

All warning terms →

Report comparison · 2 notices

Each report is compared with an earlier notice it explicitly cancels, when available, or with the preceding report. Changes refer to recorded wording and parsed fields; quoted lines are textual differences, not a verified account of how an incident developed. Nearby reports can describe different hazards. A status explanation is given once, on the first notice with that status.

  1. 1
    NAVAREA XI 425/26Issued 2026-09-23 12:00Z · Japan Coast Guard JHOD NAVAREA XI

    Space debris hazard area in North Pacific is active daily 1427Z to 1833Z from 28 Sep to 04 Oct and cancels 04 Oct 1933Z.

    Cancelled notice · 2026-09-29 00:21Z

    This notice disappeared from the issuing source's in-force list. No explicit recovery or all-clear is established by that removal.

    Cancelled by NAVAREA XI 435/26

    Earliest dated notice in this group. The archive does not establish whether it was the first report of the situation.

    Original warning text · NAVAREA XI 425/26
    NORTH PACIFIC.
SPACE DEBRIS. 1427Z TO 1833Z DAILY 28
SEP TO 04 OCT. AREA BOUNDED BY
23-55N 144-37E 26-07N 151-14E
27-41N 156-20E 29-25N 165-03E
30-26N 172-41E 30-56N 180-00W
31-11N 175-00W 31-17N 171-29W
30-33N 161-15W 29-37N 155-40W
28-49N 151-35W 26-53N 145-26W
26-50N 145-28W 24-03N 154-32W
23-46N 156-11W 24-52N 159-19W
27-38N 167-49W 29-25N 175-00W
29-45N 176-35W 29-49N 180-00W
29-41N 176-14E 29-13N 170-10E
28-28N 164-59E 26-39N 156-15E
23-28N 144-48E.
CANCEL THIS MSG 041933Z OCT.
  2. 2
    NAVAREA XI 435/26Issued 2026-09-29 00:00Z · Japan Coast Guard JHOD NAVAREA XI

    The space debris hazard in the North Pacific has ended, and warning 0425/26 along with this message is cancelled.

    Listed in force

    Cancels NAVAREA XI 425/26

    Compared with its linked earlier notice: NAVAREA XI 425/26.

    Reported position
    Earlier: 30.121, 5.827
    This report: No parsed position
    Reported geometry
    Earlier: Previous parsed shape
    This report: No parsed shape
    Activity windows
    Earlier: 2026-09-28 14:27 UTC to 2026-09-28 18:33 UTC; 2026-09-29 14:27 UTC to 2026-09-29 18:33 UTC; 2026-09-30 14:27 UTC to 2026-09-30 18:33 UTC; 2026-10-01 14:27 UTC to 2026-10-01 18:33 UTC; 2026-10-02 14:27 UTC to 2026-10-02 18:33 UTC; 2026-10-03 14:27 UTC to 2026-10-03 18:33 UTC; 2026-10-04 14:27 UTC to 2026-10-04 18:33 UTC
    This report: No explicit window parsed

    Wording in earlier report

    SPACE DEBRIS. 1427Z TO 1833Z DAILY 28
    SEP TO 04 OCT. AREA BOUNDED BY

    Wording in this report

    SPACE DEBRIS. CONCLUDED.
    CANCEL 0425/26 AND THIS MSG.
    Original warning text · NAVAREA XI 435/26
    NORTH PACIFIC.
SPACE DEBRIS. CONCLUDED.
CANCEL 0425/26 AND THIS MSG.

Missiles

Missile firings, rocket launches and space debris re-entry areas. All current missile & rocket hazards →

Not for navigation. These groups are assembled automatically from collected warnings. Mariners must use official NAVAREA broadcasts and their national MSI service.

Space debris — North Pacific · seahazards